I LOVE, LOVE, LOVE the picture cards! Especially the ones with children.
Our family is so scattered that we often go years without seeing each other in person. If the parents aren't on the card, that's probably okay because they probably look pretty much the same as they looked last year. But kids are a whole different matter. They change so much in a year's time.
So if I'm on your Christmas list, please send me a picture card. I display them, save them and cherish them. I have a special box I've been keeping for over forty years just for those cards. (I don't save any of the commercial "regular" ones.) The picture ones hold a lot of meaning.
Now if I don't know you, then maybe a 'traditional' card might be more appropriate. But if you're my family or friend, send pictures!!